Vehicle assembly building, Kennedy space center

Situation:In January of 2000, Zentox Corporation replaced the existing ozone treatment system on the Vehicle Assembly Building (VAB) and Launch Control Center (LCC) cooling towers with a state-of-the-art ozone water treatment system that is centered on the Clean Streams™ Ozone Transfer Process. The cooling towers, a launch critical system located adjacent to the VAB, had been on ozone treatment since 1992, but the old ozone system had not performed to KSC standards for many years.

The VAB has chillers with a total of 10,000-tons capacity for HVAC. The system has a volume of 240,000 gallons and is composed of four cells, each with a flow of 7,500 gpm. The condenser system has an average annual loading of 36%.

Microbiological Control:The new Zentox ozone cooling water treatment system was powered up in April of 2000. Following start-up, the towers are free of microbiological fouling, even with an increase in cycles of concentration and a decrease in city makeup water.

Water Conservation:Cycles of concentration of the cooling tower were raised from 4 to 12, thus reducing blowdown and makeup water consumption. Building water usage was reduced from 65,000 to 10,000 gallons per day after the installation of the Zentox system, a reduction of 85%.

Improved Operation:After the upgrade to the Zentox Clean Streams™ process, the building air conditioning system was able to run at 36% average annual loading, with launch critical facilities adequately cooled.

Corrosion Control:Corrosion coupons were installed in the system and corrosion rates began dropping as microbiological cleanup occurred. Corrosion rates are continuing to stabilize and are currently at less than 4 mpy on mild steel and less than 1 mpy on copper.

Customer Response:Primary contractor for this project at Kennedy Space Center is actively promoting the conversion of other towers on the facility to ozone treatment. Zentox has been invited to evaluate follow-on projects.

Related products

Related articles

The Problem: In 2010, the Hagerstown Wastewater Treatment Plant in Maryland incorporated several plant modifications, one of which was the conversion of their disinfection process from the use of ozone to that of ultraviolet (UV). In their previous system, due to the ozone being produced by an oxygen-fed ozone generator, the dissolved oxygen (DO) levels of the effluent being discharged into a local creek met regulatory standards. With the change in the disinfection process, the regulatory agency was concerned...

GDT Degas Separator Selected As Best Method For Entrained Gas Bubbles Removal Wichita, KSThe Problem: In the 1990s, the City of Wichita, Kansas developed a water supply plan that included creating a sustainable water supply through the year 2050. The key component of the plan is recharging the large aquifer that lies under the region with 100 MGD of water from the Little Arkansas River. This undertaking is known as the Aquifer Storage and Recovery project or ASR. Phase I was completed in 2006 with the diversion...

Sidestream Venturi Injection—Basin Nozzle Manifold Contacting System. Montreal, Quebec, CanadaThe Problem: In 2001, a water quality audit revealed that two of the largest drinking water plants in the City of Montreal were out of compliance with Quebec’s latest water quality rules. In response to the audit, the city upgraded the 1,400 MLD Atwater and the 1,280 MLD Charles J. Des Baillets (Des Baillets ) Water Treatment Plants (WTPs) to comply with the water quality rules and meet the water quality...

Oxidation of 2,4,6-trinitrotoluene (TNT) using simple ozonation and direct hydrogen peroxide was studied. An analytical method based on the HPLC (high performance liquid chromatography) system was used for TNT detection. The influence of parameters such as pH of the solution (3–10), initial TNT concentration (10–100 mg/L), dosage of ozone (0.2–1 g/hr), H2O2/TNT molar ratio (250–1,000), and reaction time (15–60 min) on TNT degradation ratio were investigated. Maximum TNT degradation efficiency occurred at pH = 10,...

Aggregated data reported by companies on the import, export, production, destruction, and feedstock and process agent use of ozone-depleting substances in the European Union
Executive Summary
Background
Chemicals known to harm the ozone layer have been successfully substituted in most parts of the world since 1989, when the Montreal Protocol on Substances that Deplete the Ozone Layer came into force. Within the European Union (EU), ozone-depleting substances (ODS) are covered by Regulation (EC) No 1005/2009...

Customer comments

No comments were found for Vehicle assembly building, Kennedy space center. Be the first to comment!